651018942 has 24 divisors (see below), whose sum is σ = 1612047216. Its totient is φ = 186005376.

The previous prime is 651018937. The next prime is 651018943. The reversal of 651018942 is 249810156.

It is a junction number, because it is equal to n+sod(n) for n = 651018897 and 651018906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651018943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2583283 + ... + 2583534.

It is an arithmetic number, because the mean of its divisors is an integer number (67168634).

Almost surely, 2^651018942 is an apocalyptic number.

651018942 is an abundant number, since it is smaller than the sum of its proper divisors (961028274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651018942 is a wasteful number, since it uses less digits than its factorization.

651018942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5166832 (or 5166829 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 651018942 is about 25515.0728394022. The cubic root of 651018942 is about 866.6915087225.

It can be divided in two parts, 6510 and 18942, that added together give a palindrome (25452).

The spelling of 651018942 in words is "six hundred fifty-one million, eighteen thousand, nine hundred forty-two".